"cyber model" of the cars?

[HDHSVI]

how did the game programers come up with the "cyber model" of the cars?

What I mean is did they use the real car and record its information or did they just plug numbers into a mathmatical formula? 💡

Cya,
Hankster

 

[MitchZ06]

You mean how did they create the virtual models? Pretty sure they are 'handcrafted' and thus that's why they take 6 months to create vs a laser scanned model which takes significantly less time to produce.

 

[Crumpet]

I believe they used real cars, or in some cases, die-cast cars..

 

[VTiRoj]

They scanned a real car, put it into 3DS Max or similar then manually went over it to go over any rough patches and to add details. At least I think so anyway.

 

[MitchZ06]

It's been discussed before how they do it and I'm not sure what I've said is entirely correct (other than the 'handcrafted' bit being mentioned in the past).

 

[HDHSVI]

ok I'm not talking about the outside of the car - but the actual handeling/performace side of things.

Cya,
Hankster

 

[W3H5]

If you ask me, they should have used Google Sketch Up, it might have saved then some time.
Na, I'm just kiddin'.

 

[Exorcet]

What I mean is did they use the real car and record its information or did they just plug numbers into a mathmatical formula? 💡

That's really the same thing. The cars are defined by parameters that go into equations, at least that's usually what happens.

Here is a plane from the flight simulator FSX

[weight_and_balance]
max_gross_weight = 775000
empty_weight = 347800
reference_datum_position = 0, 0, 0
empty_weight_CG_position = 0, 0, 0
empty_weight_pitch_MOI = 41600000
empty_weight_roll_MOI = 42000000
empty_weight_yaw_MOI = 67500000
empty_weight_coupled_MOI = 1000
max_number_of_stations = 7

station_load.0 = "4200, 70, 0, 5, 1st Class - 24 pax" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.1 = "9450, 40, 0, 5, Business Class - 54 pax" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.2 = "28875, -10, 0, 5, Econ Front - 165 pax" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.3 = "20125, -55, 0, 5, Econ Rear - 115 pax" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.4 = "11250, 50, 0, 0, Fore Cargo" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.5 = "11250, -50, 0, 0, Aft Cargo " //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  
station_load.6 = "1000, -70, 0, 0, Bulk Cargo" //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)  


[lights]

//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing

light.0 = 1, 28.5, 0, 12.4, Opensky_beacon
light.1 = 1, 4.75, 0, -9, Opensky_beacon
light.2 = 3, -127, 0, 4.5, Opensky_nav_yellow
light.3 = 8, 32.7, -10.1, 1.3, Opensky_nav_yellow
light.4 = 8, 32.7, 10.1, 1.3, Opensky_nav_yellow
light.5 = 4, 105, 0, 5.4, Opensky_747_vclight
light.6 = 2, -127.9, 0, 8.5, fx_strobeh
light.7 = 4, 105, -2.2, 5.328, Opensky_747_vclight
light.8 = 4, 105, 2.2, 5.328, Opensky_747_vclight
light.9 = 8, 12.5, 23, 0, Opensky_nacelle_refl
light.10 = 8, 12.5, -23, 0, Opensky_nacelle_refl
light.11 = 8, 25, 30, 0, Opensky_wing_light
light.12 = 8, 25, -30, 0, Opensky_wing_light
light.13 = 8, 0, 56, 0, Opensky_wing_light
light.14 = 8, 0, -56, 0, Opensky_wing_light

[GeneralEngineData]

//0=Piston, 1=Jet, 2=None, 3=Helo-Turbine, 4=Rocket, 5=Turboprop
engine_type = 1
fuel_flow_scalar = 0.735
min_throttle_limit = -0.32
engine.0 = 10.0, -32.583, -10.500
engine.1 = 10.0,  32.583, -10.500

[smokesystem]
smoke.0 = -15, 22, 32, Opensky_revspray
smoke.1 = -15, 22, -32, Opensky_revspray

[effects]
wake = fx_wake
water = fx_spray
dirt = fx_tchdrt
concrete = opensky_sparks, 1
touchdown = fx_tchdwn, 1
windshield_rain_effect_available = 1

[fuel]

//Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)

fuel_type = 2
number_of_tank_selectors = 3
electric_pump = 1

Center1 = 10, 0, -4, 14220, 10
LeftMain = -5, -35, 0, 6200, 6
LeftAux = -10, -49.705, 0, 9300, 6
RightMain = -5, 35, 0, 6200, 6
RightAux = -10, 49.705, 0, 9300, 6


[contact_points]
static_pitch = 0
static_cg_height = 14.5
tailwheel_lock = 0
gear_system_type = 1
max_number_of_points = 17

//0 Class <0=none,1=wheel, 2=scrape, 3=float>
//1 Longitudinal Position (feet)
//2 Lateral Position (feet)
//3 Vertical Position (feet)
//4 Impact Damage Threshold (Feet Per Minute)
//5 Brake Map (0=None, 1=Left, 2=Right)
//6 Wheel Radius (feet)
//7 Steer Angle (degrees)
//8 Static Compression (feet) (0 if rigid)
//9 Max/Static Compression Ratio
//10 Damping Ratio (0=Undamped, 1=Critically Damped)
//11 Extension Time (seconds)
//12 Retraction Time (seconds)
//13 Sound Type
//14 Airspeed limit for retraction (KIAS)
//15 Airspeed that gear gets damage at (KIAS)

Point.0= 1, 92.500, 0.000, -16.750, 1881.102, 0, 2.0, 70.0, 1.200, 1.800, 1.5, 7.000, 9.000, 0.000, 240.000, 280.000
Point.1= 1, -10.900, -20.291, -18.250, 2574.803, 1, 2.6, 0.0, 1.700, 1.100, 1.5, 10.900, 11.900, 2.000, 240.000, 280.000
Point.2= 1, -10.900, 20.291, -18.250, 2574.803, 2, 2.6, 0.0, 1.700, 1.100, 1.5, 8.100, 13.100, 3.000, 240.000, 280.000
point.3 = 2,  -44.167, -99.916,  10.000,  787.401, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0
point.4 = 2,  -44.167,  99.916,  10.000,  787.401, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0
point.5 = 2, -108, 0, -0.6, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0
point.6 = 2, 88.417, 0, -7.5, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
point.7 = 2,   10.000, -32.583,  -8.500,  787.401, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 7.0, 0.0, 0.0
point.8 = 2,   10.000,  32.583,  -8.500,  787.401, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 8.0, 0.0, 0.0
point.9 = 2, 14, -32.583, -13.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0
point.10 = 2, 14, 32.583, -13.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0
point.11 = 2, 105, 0, -4.5, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
point.12 = 2, 100, 0, 8.9, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
point.13 = 2, -127, 0, 41.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0
point.14 = 2, -128.5, 35, 9, 787.401, 0, 0, 0, 0, 0, 0, 0, 5, 9, 0, 0
point.15 = 2, -128.5, -35, 9, 787.401, 0, 0, 0, 0, 0, 0, 0, 6, 9, 0, 0
point.16 = 2, -81.5, 0, -6, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0


//[contact_points]
//static_pitch = 0
//static_cg_height = 16.4
//tailwheel_lock = 0
//gear_system_type = 1
//max_number_of_points = 28

        //0  Class                        <0=none, 1=wheel, 2=scrape, 3=float>
        //1  Longitudinal Position        (feet)
        //2  Lateral Position             (feet)
        //3  Vertical Position            (feet)
        //4  Impact Damage Threshold      (Feet Per Minute)
        //5  Brake Map                    (0=None, 1=Left, 2=Right)
        //6  Wheel Radius                 (feet)
        //7  Steer Angle                  (degrees)
        //8  Static Compression           (feet)  (0 if rigid)
        //9  Max/Static Compression Ratio
        //10 Damping Ratio                (0=Undamped, 1=Critically Damped)
        //11 Extension Time               (seconds)
        //12 Retraction Time              (seconds)
        //13 Sound Type
        //14 Airspeed limit for retraction     (KIAS)
        //15 Airspeed that gear gets damage at (KIAS)

//point.0 = 1, 91.243, -1.5, -16.5, 1881.102, 0, 1.6, 70, 1, 1.8, 2.4, 7, 9, 0, 240, 280
//point.1 = 1, 91.243,  1.5, -16.5, 1881.102, 0, 1.6, 70, 1, 1.8, 2.4, 7, 9, 0, 240, 280

//point.2 = 1,  -14.800, -20.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.3 = 1,  -14.800, -15.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280
//point.4 = 1,   -9.800, -20.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.5 = 1,   -9.800, -15.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280
//point.6 = 1,   -5.000, -20.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.7 = 1,   -5.000, -15.291, -17.800, 2574.803, 1, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280
//point.8 = 1,  -14.800,  20.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.9 = 1,  -14.800,  15.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280
//point.10 = 1,  -9.800,  20.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.11 = 1,  -9.800,  15.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280
//point.12 = 1,  -5.000,  20.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 10.9, 11.9, 2, 240, 280
//point.13 = 1,  -5.000,  15.291, -17.800, 2574.803, 2, 2, 0, 1.245, 3.0, 2.2, 8.1, 13.1, 3, 240, 280


//point.14 = 2,  -44.167, -99.916,  10.000,  787.401, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0
//point.15 = 2,  -44.167,  99.916,  10.000,  787.401, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0
//point.16 = 2, -108, 0, -0.6, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0
//point.17 = 2, 88.417, 0, -7.5, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
//point.18 = 2,   10.000, -32.583,  -8.500,  787.401, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 7.0, 0.0, 0.0
//point.19 = 2,   10.000,  32.583,  -8.500,  787.401, 0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 8.0, 0.0, 0.0
//point.20 = 2, 14, -32.583, -13.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0
//point.21 = 2, 14, 32.583, -13.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0
//point.22 = 2, 105, 0, -4.5, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
//point.23 = 2, 100, 0, 8.9, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0
//point.24 = 2, -127, 0, 41.3, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0
//point.25 = 2, -128.5, 35, 9, 787.401, 0, 0, 0, 0, 0, 0, 0, 5, 9, 0, 0
//point.26 = 2, -128.5, -35, 9, 787.401, 0, 0, 0, 0, 0, 0, 0, 6, 9, 0, 0
//point.27 = 2, -81.5, 0, -6, 787.401, 0, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0


[keyboard_response]
elevator = 100.000, 200.000
aileron = 100.000, 200.000
rudder = 100.000, 200.000


[forcefeedback]
gear_bump_nose_magnitude = 6000
gear_bump_nose_direction = 18000
gear_bump_nose_duration = 250000
gear_bump_left_magnitude = 6000
gear_bump_left_direction = 35500
gear_bump_left_duration = 250000
gear_bump_right_magnitude = 6000
gear_bump_right_direction = 00500
gear_bump_right_duration = 250000
ground_bumps_magnitude1 = 3250
ground_bumps_angle1 = 8900
ground_bumps_intercept1 = 5.0
ground_bumps_slope1 = 0.48
ground_bumps_magnitude2 = 750
ground_bumps_angle2 = 9100
ground_bumps_intercept2 = 0.075
ground_bumps_slope2 = 1.0
crash_magnitude1 = 10000
crash_direction1 = 01000
crash_magnitude2 = 10000
crash_direction2 = 9000
crash_period2 = 75000
crash_duration2 = 2500000

[airplane_geometry]
wing_area = 4605.000
wing_span = 212
wing_root_chord = 50.000
wing_dihedral = 6.218
wing_incidence = 1.000
wing_twist = -0.500
oswald_efficiency_factor = 0.600
wing_winglets_flag = 1
wing_sweep = 35
wing_pos_apex_lon = 30.000
wing_pos_apex_vert = 0.000
htail_area = 1291
htail_span = 70
htail_pos_lon = -96.5
htail_pos_vert = 5
htail_incidence = 0.000
htail_sweep = 40.000
vtail_area = 573.000
vtail_span = 35
vtail_sweep = 45
vtail_pos_lon = -85
vtail_pos_vert = 8.800
elevator_area = 137.000
aileron_area = 68.000
rudder_area = 232.000
elevator_up_limit = 24.000
elevator_down_limit = 18.000
aileron_up_limit = 24.000
aileron_down_limit = 18.000
rudder_limit = 32.000
elevator_trim_limit = 16.000
spoiler_limit = 45.000
aileron_to_spoileron_gain = 1.000
spoiler_handle_available = 1
min_ailerons_for_spoilerons = 12.000
min_flaps_for_spoilerons = 0
spoilerons_available = 1
auto_spoiler_available=1
spoiler_extension_time=2.500000
positive_g_limit_flaps_up=4.000000
positive_g_limit_flaps_down=3.000000
negative_g_limit_flaps_up=-3.000000
negative_g_limit_flaps_down=-2.000000

[electrical]
max_battery_voltage = 24
generator_alternator_voltage = 28
max_generator_alternator_amps = 60
engine_generator_map = 1,1
electric_always_available = 0
flap_motor = 0, 5, 17
gear_motor = 0, 5, 17
autopilot = 0, 5, 17
avionics_bus = 0, 5, 17
avionics = 1, 5, 17
pitot_heat = 0, 2, 17
additional_system = 0, 2, 17
marker_beacon = 1, 2, 17
gear_warning = 0, 2, 17
fuel_pump = 0, 5, 17
starter1 = 0, 20, 17
light_nav = 0, 5, 17
light_beacon = 0, 5, 17
light_landing = 0, 5, 17
light_taxi = 0, 5, 17
light_strobe = 0, 5, 17
light_panel = 0, 5, 17

[flight_tuning]
cruise_lift_scalar=1.00 
parasite_drag_scalar=0.55 
induced_drag_scalar=0.88 
elevator_effectiveness=1.00 
aileron_effectiveness=1.60 
rudder_effectiveness=1.00 
pitch_stability=1.00 
roll_stability=1.00 
yaw_stability=1.00 
elevator_trim_effectiveness=0.40 
aileron_trim_effectiveness=0.50 
rudder_trim_effectiveness=0.50 

[General]
performance=Passengers\n3-class conf: 301 \n2-class conf: N/A \n1-class conf: N/A\n\nCargo\n14 LD-3 containers aft \n600 cubic Ft (17 cubic m)\nTotal lower hold volume: 7,120 cu ft \n\nDimensions\nSpan 212 ft 7 in\nLength 242 ft 4 in\nHeight 61 ft 5 in \n  (--max  58 ft 8 in--min)\n\nEngines: General Electric 90-115B1\nTO Thrust Rating: 115,100 lb\n\nMax Fuel Cap.: 47,890 gal\nMaxTOW: 775,000 lb\nZFW: 524,000 lb\n\nMax Range: 7,930 nautical miles (14,685 km)\nTypical Cruise Speed \n  @ FL350: M.84 
atc_type=BOEING 
atc_model=B773 
editable=0 
Category=airplane

[pitot_static]
vertical_speed_time_constant=999		//Increasing this value will cause a more instantaneous reaction in the VSI
pitot_heat=1.000000

[jet_engine]
thrust_scalar=1.000 

[TurbineEngineData]
bypass_ratio=6.400000
fuel_flow_gain=0.001 
inlet_area=65.962 
rated_N2_rpm=29920.000 
static_thrust=115100.000 
afterburner_available=0 
reverser_available=1 

[Reference Speeds]
flaps_up_stall_speed=174.000 
full_flaps_stall_speed=158.000
cruise_speed=485.00 
max_indicated_speed=330.000000
max_mach=0.890020

[Views]
eyepoint=104.782, -1.756, 5.20 

[autopilot]
autopilot_available=1 
flight_director_available=1 
default_vertical_speed=800.000 
autothrottle_available=1 
autothrottle_arming_required= 1
autothrottle_takeoff_ga= 1
autothrottle_max_rpm= 110.000
pitch_takeoff_ga=8.00  //0.000
use_no_default_pitch = 1 // 0 = Default to current pitch mode, 1 = No default pitch mode.
use_no_default_bank = 1 // 0 = Default to Wing Leveler mode, 1 = No default bank mode.
default_pitch_mode=0
default_bank_mode=0
max_pitch=10.000000
max_pitch_acceleration=1.000000
max_pitch_velocity_lo_alt=2.000000
max_pitch_velocity_hi_alt=0.300000
max_pitch_velocity_lo_alt_breakpoint= 7000.000000
max_pitch_velocity_hi_alt_breakpoint=24000.000000
max_bank=30.000000
max_bank_acceleration=1.200000
max_bank_velocity=2.000000
max_throttle_rate=0.024
nav_proportional_control=9.000000
nav_integrator_control=0.250000
nav_derivative_control=0.000000
nav_integrator_boundary=2.500000
nav_derivative_boundary=0.000000
gs_proportional_control=9.520000
gs_integrator_control=0.260000
gs_derivative_control=0.000000
gs_integrator_boundary=0.700000
gs_derivative_boundary=0.000000
yaw_damper_gain=1.000000

[Radios]
// Radio Type=availiable, standby frequency, has glide slope
Audio.1=1 
Com.1=1, 1 
Com.2=1, 1 
Nav.1=1, 1, 1 
Nav.2=1, 1, 0 
Adf.1=1 
Transponder.1=1 
Marker.1=1 

[flaps.0]      //Inboard Trailing Edge
type             = 1                                    // 1 - tail, 2 - lead
span-outboard    = 4.2                                  // 0.0 .. 1.0
extending-time   = 35                                   // seconds
flaps-position.0 = 0                                    // degrees
flaps-position.1 = 0                                    // degrees
flaps-position.2 = 5                                    // degrees
flaps-position.3 = 15                                   // degrees
flaps-position.4 = 20                                   // degrees
flaps-position.5 = 25                                   // degrees
flaps-position.6 = 30                                   // degrees
damaging-speed   = 260                                  // KIAS
blowout-speed    = 300                                  // KIAS
lift_scalar = 0.82
drag_scalar = 0.95
pitch_scalar= 0.60
system_type = 1                                         //Hydraulic

[flaps.1]    //Outboard Trailing Edge
type             = 1                                    // 1 - tail, 2 - lead
span-outboard    = 4.8                                  // 0.0 .. 1.0
extending-time   = 35                                   // seconds
flaps-position.0 = 0                                    // degrees
flaps-position.1 = 5                                    // degrees
flaps-position.2 = 10                                    // degrees
flaps-position.3 = 15                                   // degrees
flaps-position.4 = 20                                   // degrees
flaps-position.5 = 25                                   // degrees
flaps-position.6 = 30                                   // degrees
damaging-speed   = 260                                  // KIAS
blowout-speed    = 300                                  // KIAS
lift_scalar = 0.40
drag_scalar = 0.50
pitch_scalar= 0.30
system_type = 1                                         //Hydraulic

[flaps.2]     //Inboard Leading Edge Slats
type             = 2                                     // 1 - tail, 2 - lead
span-outboard    = 4.5                                   // 0.0 .. 1.0
extending-time   = 18                                    // seconds
flaps-position.0 = 0                                     // degrees
flaps-position.1 = 5                                     // degrees
flaps-position.2 = 5                                     // degrees
flaps-position.3 = 5                                     // degrees
flaps-position.4 = 5                                     // degrees
flaps-position.5 = 20                                    // degrees
flaps-position.6 = 20                                    // degrees
damaging-speed   = 260                                   // KIAS
blowout-speed    = 300                                   // KIAS
lift_scalar = 0.30
drag_scalar = 0.30
pitch_scalar= 0.30
system_type = 1                                          //Hydraulic

[direction_indicators]
direction_indicator.0=3,0 

[brakes]
toe_brakes_scale=0.580
parking_brake=1
auto_brakes=4
[hydraulic_system]
electric_pumps=0
engine_map=1,1,0,0
normal_pressure=3000.000000
[stall_warning]
type=1
stick_shaker=1
[attitude_indicators]
attitude_indicator.0=1
[turn_indicators]
turn_indicator.0=1,0
[gear_warning_system]
gear_warning_available=0
pct_throttle_limit=0.099976
flap_limit_power=25.496622
flap_limit_idle=5.042029
[TailHook]    // For opening cargo door.
tailhook_length=1                               ;(feet)
tailhook_position = 0.0, 0.0, 0.0            ;(feet) longitudinal, lateral, vertical positions from datum
[folding_wings]  // For opening main deck cargo door.
wing_fold_system_type = 4                       ;0=None
fold_rates = 0.05,1.00                    ;Percent per second
[exits]
number_of_exits = 4
exit_rate.0 = 0.10 ;Percent per second
exit_rate.1 = 0.08 ;Percent per second
exit_rate.2 = 0.10 ;Percent per second
exit_rate.3 = 0.08 ;Percent per second

[vacuum_system]

 

[SlyckTires]

I believe they used real cars, or in some cases, die-cast cars..

If this is true, I think you can tell, since some of the shutlines appear very 'rounded', like you'd expect off scale die cast.

 

[ECGadget]

It's called hardpointing (at least in PC games), basically you write code, such as the FSX one above, which adds physical properties to the model, e.g.

(ENGINE)
TopSpeed = 150;
Acceleration = 29;
Intercooler = 0;
Turbo = 2;

Etc etc... But the numbers do not mean the actual value... Like 29 doesn't mean 29m/s^2 but could be a scale between 1 and 200 to define it...

 

[niky]

They do have some testing data and telemetry, and data on spring rates and damper rates, but they have to write the handling model for each car and test it to see if it comes close to the real thing. Problem is, GT still doesn't seem to model dynamic camber changes, so there's probably a whole lot of tweaking needed to make things square up with real life for some cars.

I believe they used real cars, or in some cases, die-cast cars..

That was just an "Easter Egg"/Joke put in by one of the modellers, if you're referring to the die-cast underside of one of the cars.

They scan the cars, then they have to redraw them by hand to fit within a certain polygon count, to ensure the system can handle twelve to sixteen "premiums" on-screen at the same time.

For older models, they didn't have the data for the underside of the car, which is why they skipped this on "standards."

If all it took was laser-scanning, modelling for any and ever game on the market would take merely a day or so for each model in the game. Making picture perfect computer models is easy. The hard part is simplifying them without losing definition.

 

[Exorcet]

TopSpeed = 150;
Acceleration = 29;

I don't think you would see numbers like this in a simulator. The top speed and acceleration can't be constants. You'd have power, drag, and weight which would determine speed and accel.

 

[Techy]

I don't think you would see numbers like this in a simulator. The top speed and acceleration can't be constants. You'd have power, drag, and weight which would determine speed and accel.

I think he's just writing down the base values, meaning that it isn't affected by any other variables yet. But you are right regardless. Weight, power, aerodynamics, suspension, etc. would affect speed & accel.

 

[Crumpet]

Modelling one car sounds like seriously hard work.

 

[Exorcet]

Modelling one car sounds like seriously hard work.

It depends. They only need to work out the model for a generic car once, and then get all the numbers for each individual car from the manufacturer and plug them in. That's the ideal.

However, they may need to estimate or guess numbers sometimes, or they could discover that the physics engine isn't accurate enough for some detail and need to go back to the equations from time to time.

 

[HDHSVI]

ok so I'm taking from this that it is basically and equation or series of equations that determine how the cars behave mechanically in the game - which makes sence ....

My point here is:

GOD they really F___ up the only old Mustang in this game!

Ya see I'm an older guy late fourties to be exact and I'd imagine not alot of us older guys here in the forum, I own and have raced my '66 Mustang way back when I was a kid. The thing that is just KILLING me is the fact that the RM'ed Camaro is sooooo good! BUT you cant drive the Mustang with out the traction control on 10..... for an old Ford guy this is unbearable!!!!

Who do I bitch at and how to get them to fix the problems with the car?

Cya,
Hankster